Oct. 07, 2024
Barcoding and inventory management are a perfect pairing &#; after all, improving stock traceability and inventory accuracy is the core purpose of both practices.
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This guide explores the relationship between barcoding and inventory management; as well as the how, what, and why of barcodes themselves.
Barcoding is the process of applying unique, black-and-white images (barcodes) to individual product SKUs. Each barcode represents a set of numbers and letters that can be used to track and manage a product across its lifetime journey.
In order to apply barcodes to inventory management, it is important to understand the basics of the barcode system. There are three main components involved:
Here we&#;ll look in detail at all three of these components, as well as how barcoding is used with inventory management software to help manage warehousing and supply chain management &#; and cover some of its key benefits.
Barcoding hardware is comprised of tangible units that include barcode scanners, printers, charging stations, and a series of cables, depending on the type of system you are using to scan.
Some companies will find corded barcode scanners to be all they need, where other companies require wireless scanners to support their online inventory management. Below are some examples of barcoding hardware equipment.
As you can imagine, the first bit of equipment you might need to generate a barcode is a barcode generator. It is not necessary to buy them from a universal database (such as UPC) particularly if you are just starting out and testing the waters.
There are online web services with either barcode fonts or barcode generators where you can create barcodes. A popular type of barcode created in this way for small to medium sized business is Code 3 of 9 and is printable with a standard laser printer on standard labels.
You can choose between multiple types with various costs however all you really need, particularly if your needs are only small at this stage, is a simple laser printer to use with Avery standard labels.
The laser printer produces very clear and legible barcodes and at a fraction of the cost of others so are a great choice.
Handheld barcode scanners are affordable pieces of kit.The second piece of hardware you will need is a barcode scanner. These do not need to be costly at all with a perfectly adequate one being available for under $100.
It is important however to pick one that is going to suit your needs such as being USB accessible with the scanner being portable for difficult to reach inventory items.
Now that you have the data, the printer and a way of reading it, you need a software system to analyse and store it. This is where your inventory management software comes into the picture and will invariably make life so much easier and more organised.
Inventory management systems are generally set up to incorporate barcoding if that is what you require.
This will enable the fast and efficient acquisition of incoming product data by one simple scan per different item, and for similar items, they can all be added into stock simultaneously by scanning the barcode once and accounting for the incoming stock number.
A barcode is a picture that translates to an alphanumeric string. The idea is reasonably simple &#; each item should have a unique identifying string, which is then printed as a barcode and can be scanned. Each stock-keeping unit (SKU) will have its own barcode, so, for example, a 6-pack of beer will use a different barcode than a larger case.
Although it would be possible to print product numbers on inventory instead of barcodes, the downside with numbers is that they can be slower to read and easier to confuse. For example, the numbers &#;6&#; and &#;9&#;.
Barcodes, on the other hand, can be read very rapidly while maintaining near perfect accuracy.
Barcode formats vary depending on their intended use.In a standard &#;one dimensional&#; barcode, each digit (or character) in the string is given the same amount of horizontal space in the barcode (7 &#;units&#; relative to the size of the barcode).
To represent each digit from zero to nine, each unit of the barcode is coloured in with a representative pattern of black and white stripes. The number &#;8&#;, for example, translates to one white space, two black spaces, one white space and, finally, four black spaces.
Two dimensional (2D) barcodes look like squares or rectangles that contain many small, individual dots. The most widely recognised 2D barcode, the QR code, consists of black squares arranged in a square grid on a white background.
An image is taken of the QR code (commonly by a smartphone camera) and is then processed using an error correction algorithm. Data contained in the QR code is then extracted from patterns that are displayed horizontally and vertically within the image.
Because they encode data vertically as well as horizontally, 2D barcodes can hold a wider variety of inventory information.
In addition to SKU numbers, a 2D barcode could be used to encode expiry dates, batch numbers or traceability information.
A barcode is not useful by itself, but instead only once the products are labelled with the barcodes and they can be scanned.
The scanner shines LED or laser light onto the barcode, which is then reflected back into a sensor in the scanner. The sensor is able to discern between black and white spaces in the barcode as each reflects a different amount of light.
Whether the scanner used is handheld, pen-style or an embedded scanner (such as the kind found in self-checkout terminals), scanning the barcode will produce the identifying string, which is then matched to a record in the inventory management or point of sale system.
Barcode symbols are used to encode information such as product numbers, serial numbers and batch numbers. Barcodes can be scanned electronically using laser or camera-based technology that allows goods to be tracked throughout the supply chain.
There are over 100 various barcode symbols which are typically either one or two-dimensional.
The linear, or one-dimensional barcode, is the more readily recognized type and is characterized by parallel lines of varying widths and spacings. In contrast, a two-dimensional barcode, including the newer QR codes, use squares or rectangles and contain numerous small, individual dots and geometric patterns. Common barcodes consist of the following types:
Inspired by the dots and dashes of Morse code, the original 1D barcode creates specific patterns from line widths and spacing to represent stock keeping unit information.
Used in a wide range of industries, 2D barcodes can hold significant amounts of information. One benefit of using a 2D code is that they remain reasonably legible, even when imprinted on to products or applied at a reduced size.
Barcodes are easy to implement, and they have the potential to take a lot of pain out of the inventory management process. Not only do barcodes speed up data entry, they also increase the accuracy of your inventory records and make real-time inventory control possible.
Here&#;s how to set up barcoding for inventory management.
Barcoding does not usually require a significant investment in new technology, although there are a few things you will need to acquire in order to get started.
Firstly, you will need barcodes.
A barcode is, at its simplest, just a picture that represents a number or text.
Barcode fonts or generators are a free solution for internal use, although you will need to purchase accredited barcodes (either from the standards organisation GS1 or from a reseller) if you intend to apply barcodes to products for sale to larger retailers.
Of course, products manufactured elsewhere may already come with barcodes, and you may choose to use these.
Barcode scanners vary in their complexity &#; and costOnce you&#;ve generated your barcodes, you will need a barcode scanner.
The classic handheld barcode scanner is usually best for small businesses as it is relatively fast while still being flexible enough to scan items that are too big or irregularly shaped to put on a counter.
While handheld scanner technology can vary widely, an adequate laser scanner can usually be purchased for less than $100. For portable use, a wireless barcode scanner may be paired with a smartphone or tablet.
Pen-style scanners are also useful for their portability; that said, they can be much slower for tasks involving repeated scanning (for example, a stocktake) as the end of the scanner must be run over the entire barcode (like a highlighter).
Embedded barcode scanners, such as those typically seen at supermarket checkouts, are expensive and immobile so they are not ideal for small or medium sized businesses.
Not all inventory management software will support barcoding; it is important to use software that can store barcode data and produce labels on demand. While there is a wide range of inventory software packages, cloud-based Software-as-a-Service is often a good fit for growing businesses.
If your business has a large number of SKUs that do not have barcodes, knowing where to start may be a daunting task.
If most products have assigned serial numbers, it should be possible to use convert these into barcodes, at least for internal use.
On the other hand, you may simply choose to assign each product a new barcode &#; this is likely to be the case if you have not used unique identifiers previously, or if you intend to use standardised GS1 barcodes.
Obviously, your ability to assign barcodes will depend on knowing exactly which products you stock. If you do not keep a master inventory list, you may wish to carry out a stocktake in addition to referring to supplier product lists.
Decide on your company's barcode best practices to avoid data mishaps.It is important to consider what effective barcoding practices would look like in your organization.
This will largely depend on the nature of your business, how your inventory is stored and on the software and processes used to manage inventory.
Some businesses may prefer staff to scan as they go, while for others it may make sense to scan everything in one go at the end of the process. Scanning throughout is essential in some industries, particularly where there are onerous traceability or sanitary requirements or where it may be difficult to spot an absent part or missed process.
In other situations, it may be preferable to quickly scan each barcode at the end.
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Ultimately, it&#;s important to define barcoding best practices for your company and educate staff on what those are. Here are three other aspects of barcoding best practice within inventory management to consider:
If one staff member scans items when they take them out of storage for use in production, and the other scans them once they have been used in production, there are opportunities for &#;double-dipping&#; or missed counts.
Many products will have already been barcoded by suppliers. This can be useful, particularly if the supplier has barcoded using an appropriate symbology and at the level which you are fulfilling orders.
That said, it is important to bear in mind that the same products from different suppliers are likely to have different barcodes and that, in some situations, different suppliers may use the same unique identifier for different products.
If this is the case, it may be prudent to take the time to apply a new, best practice barcode.
A barcode is really just a picture which represents alphanumeric data.
It is simple to generate a barcode from a unique identifier &#; barcode fonts and generators are readily available. That said, many businesses may use the same unique identifier and symbology, and so often end up using identical barcodes for different products.
Self-generated barcodes are appropriate for strictly internal use, such as to track resources or partly finished goods. However, products that are being sold to customers should generally use a standardised, accredited barcode.
These can be obtained from a standards organisation such as GS1 for a minimal cost.
Barcoding keeps complex supply chains and distribution networks on track.Not all labels are created the same, but they can be built for any situation with some better suited for freezing cold environments and others for hot or humid environments.
They can be attached to all shapes and sizes of products, printed on paper or synthetic materials, with different label laminates such as matte, high gloss, coated or uncoated.
Custom barcode labels have many benefits and can be formulated specifically to meet your unique business needs. They are relatively cheap to produce, you can just create, print and use the barcode labels that suit you best, from large and durable, custom coloured, oddly shaped or even chemical-resistant.
Barcodes and product labels can also be created with your company logo embedded within and they may contain brand colours and graphics to improve awareness and recognition.
Professional labelling solutions make label changes and updates easy and help ensure compliance on items where labels are required to meet certain standards.
Product labelling can create efficiencies at the supplier level by sharing and updating labels with supply partners to avoid costly hold-ups when receiving items that often need to be re-labelled before moving into production.
With the right labelling solution, you can share label templates with suppliers and other trading partners so that incoming goods are labelled and formatted the way you want them. Suppliers can simply run off labels pre-populated with the information you need, preventing delays when supplier materials arrive.
Modern inventory management replies on accurate stock identification.The first and most prominent benefit to barcoding is the intrinsic accuracy associated with it.
When inventory data is manually entered into Excel spreadsheets or worse yet, handwritten on paper, it is subject to significant human error which is unavoidable. The proposed error rates are 10 in for human-operated keystrokes and a mere 1 in 10,000 scans for a barcode scanner.
Errors in inventory can have massive repercussions including delays in shipments, missed orders and over or understocked items.
Barcoding is a major efficiency boon. Not only does manual entry require more time for data auditing and stock taking, it is also a slow process. Adding value after value into field after field is a painstakingly slow task, sapping both time and staff morale.
Many businesses, particularly those with complex and varied inventory requirements, lack visibility over their stock.
Barcode scanning allows a business to track its inventory in real-time. Staff have total visibility over each item from the time it is receipted or produced, to the time it is shipped to the customer.
As online inventory management takes off, many businesses are now managing inventory from the cloud &#; allowing them to keep track of every moving part in their business, in realtime and from virtually any place in the world.
Similarly, barcodes afford tighter quality control and more accurate inventory tracking.
Not only is this feature desirable, it is also imperative especially for the pharmaceutical or medical industries where manufacture needs to be acutely controlled and frequently audited.
Tight control is also a security feature where theft or loss can be easily recognised and acted upon thereby minimizing the effects of it further down the chain.
Copious time, representing a significant monetary value, is associated with disorganized storage and recording, where staff cannot easily locate and pick items for production or shipping.
This will also inevitably result in the excess ordering of items as the perception will be that they have run out when they may simply be not found.
Barcoding is an efficient way of tracking inventory throughout the production process all the way to a sale, making it so much easier for staff to store items in a sensible way, locate them and make ordering decisions based on more accurate inventory levels.
Barcodes can also be useful when affixed to equipment so that the locations of specific items can be ascertained quickly and accurately reducing the amount of time staff spend looking for them.
Barcoding hardware and software can be set up quickly and easily for a minimal cost. It does not represent a large-scale, complicated system which takes months to commission therefore it really is accessible to most businesses, no matter how small.
Using barcoding and associated software rather than traditional Excel or handwritten methods saves a significant amount of time when it comes to data acquisition.
Often quick and accurate decisions need to be made regarding ordering and inventory and it is so helpful when the information with which to do so is available rapidly, accurately and in real-time.
Other methods of inventory recording simply do not compare to these features of barcoding systems.
When comparing a hand-written sticker attached to a product stating a unique identifier with a barcode that is neat and in black and white, the more professional appearance will be the barcode. Perception is often very valuable when it comes to business, the more professional looking item will be the preferred choice.
Barcodes (and QR codes), due to their ability to code several pieces of information simultaneously, are also being used to code for factual information that may be interesting for customers. Using a barcode to represent extra, fun facts about the company or the product can create customer interest and involvement, which are fundamental to satisfaction and loyalty.
Technology such as RFID tagging is increasingly complementing barcode use in the warehouse.The buzz is all about barcoding and how it can benefit companies the world over in optimising their internal processes to save time and money. However, barcodes are not the end of the story when it comes to inventory management and product tracking. Let&#;s explore some of the alternatives to traditional barcodes.
RFID or Radio Frequency Identification uses radio frequencies from an induced magnetic field to automatically identify and track items. RFID allows companies to quickly gain information about an item&#;s characteristics and location so that decisions can be made efficiently. RFID also facilitates efficient tracking of items in the warehouse and throughout production, paving the way for more efficient stock turnover and the use of a Just-in-Time inventory system (JIT).
An RFID system is much faster than a barcoding system as the data is automatically read (where as barcoding still requires a staff member for physically reading barcodes). A fantastic setting for RFID is the hospital where tags could potentially encode for a patient&#;s medication, allergies or medical condition. It is likely the adoption of RFID also decreases the risk of error.
Visual recognition is an exciting new field of tracking items which essentially uses modern image processing and identification technology. Basically, it does away with the &#;middleman picture&#; (i.e. the barcode), and can use an image of the product label or logo itself to generate the retrieval of or addition to, stored data.
Digimarc is a barcode which essentially comprises the entire packaging of a product rather than being like a tradition 1D barcode which exists as a small black and white striped box in the corner of underside of a product.
The major advantage of these types of codes is the time saved when using them. No longer must a retail assistant search each side of a product for the traditional barcode while ensuring it is perfectly in the laser light at an optimum distance for a correct reading. With a Digimarc code, the operator simply places the entire item in the laser beam, regardless of the position or orientation, and the system will read it.
Near Field Communication (NFC) is an amazing technological development where an NFC &#;tag&#; is used to communicate with a reader (most often a mobile ) and instruct it to do something. All of this happens without input from the user and so can be used in a variety of settings where automatic preparation or functions are required.
NFC tags can be used in immediate mobile payments where the operator&#;s mobile is instructed to process a payment on request. Likewise, they can be used for turning on automatic domestic lighting or alarm systems or starting a car without keys. The benefit of this technology is being able to treat your mobile as a command centre for all domestic and business activities so that it is no longer necessary to carry around multiple cards and keys.
Barcoding is not the be all and end all of business inventory tracking. There are many other options available that may be better suited to your company or provide an added advantage. Just remember, whatever system you use must be considered carefully prior to adoption.
When inventory is received, the team unloading the truck or container must reconcile the product received with the relevant purchase order.
This process was historically completed using a pen and clipboard and, more recently, using Excel spreadsheets. Barcodes on products can be scanned to reduce the administrative burden, allowing trucks to be turned around much more quickly.
Storing goods in the correct location, expedites the picking process and will make stocktaking quicker and easier. Staff can scan an individual item and then the corresponding bin number. The system will then verify that goods have been placed in the correct location.
High turnover stock should be placed in easy access locations closest to dispatch, improving fill rates and overall inventory control.
If you are considering a barcode system to streamline your distribution business, you are making a smart choice. Distribution companies experience greater productivity and fewer errors when implementing a barcode system in their daily processes.
Barcodes come in one and two-dimensional applications. Of the variety of barcodes available, all have pros and cons and certain systems are better suited to specific industries.
A compact, high-density 1D code used in the logistics and transportation industries for ordering and distribution. Geared toward non-point-of-sale products, they are used when supply chain applications label units with serial shipping container codes. Code 128 barcodes are dynamic and can store diverse information because they will support any character within the ASCII 128-character set.
The 2D MaxiCode is used in logistics and distribution to track and manage parcel shipments, helping to address and sort packages in a quick, efficient way. In contrast to the linear barcodes, the MaxiCode uses dots arranged in a honeycomb pattern and is made up of 888 information-bearing cells.
Unleashed Software supports barcode scanning. Users have the option to use barcode scanning when receiving products or when fulfilling a sales order.
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